2243131081 has 2 divisors, whose sum is σ = 2243131082. Its totient is φ = 2243131080.

The previous prime is 2243131073. The next prime is 2243131091. The reversal of 2243131081 is 1801313422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1737555856 + 505575225 = 41684^2 + 22485^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243131081 - 2³ = 2243131073 is a prime.

It is a super-2 number, since 2×2243131081² = 10063274093096457122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2243131091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121565540 + 1121565541.

It is an arithmetic number, because the mean of its divisors is an integer number (1121565541).

Almost surely, 2^2243131081 is an apocalyptic number.

It is an amenable number.

2243131081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243131081 is an equidigital number, since it uses as much as digits as its factorization.

2243131081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2243131081 is about 47361.7047940633. The cubic root of 2243131081 is about 1309.0358815269.

The spelling of 2243131081 in words is "two billion, two hundred forty-three million, one hundred thirty-one thousand, eighty-one".